I don't use PayPal anymore. I've been a member over at OSW for a few years, and I sold my HT Wolverine to a boardie there.
I mailed him out, with signature confirmation, I have the document from the United States Post Office with his signature, and date signed for.
Also, I've got plenty of PMs from the buyer saying "he looks good on my shelf next to my Mark 5 iron man"
The buyer filed a claim for "item not recieved", and PayPal STILL ____ing sided with him, even though I had all this proof. They told me "it couldn't be verified" so I lost $670. Now, I only use US Postal Money Orders, and I've never, ever had a problem.